CN108651016B - Corn threshing concave plate capable of automatically adjusting grid spacing - Google Patents
Corn threshing concave plate capable of automatically adjusting grid spacing Download PDFInfo
- Publication number
- CN108651016B CN108651016B CN201810608221.5A CN201810608221A CN108651016B CN 108651016 B CN108651016 B CN 108651016B CN 201810608221 A CN201810608221 A CN 201810608221A CN 108651016 B CN108651016 B CN 108651016B
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- waist
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- round steel
- connecting plate
- side connecting
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- 240000008042 Zea mays Species 0.000 title claims abstract description 61
- 235000002017 Zea mays subsp mays Nutrition 0.000 title claims abstract description 61
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 title claims abstract description 56
- 235000005822 corn Nutrition 0.000 title claims abstract description 56
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 81
- 239000010959 steel Substances 0.000 claims abstract description 81
- 230000000694 effects Effects 0.000 claims abstract description 11
- 230000001105 regulatory effect Effects 0.000 claims abstract description 7
- 235000016383 Zea mays subsp huehuetenangensis Nutrition 0.000 claims abstract description 5
- 235000009973 maize Nutrition 0.000 claims abstract description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 230000008093 supporting effect Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 abstract description 6
- 230000006835 compression Effects 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 abstract description 5
- 210000005069 ears Anatomy 0.000 abstract description 2
- 235000013339 cereals Nutrition 0.000 description 9
- 230000001976 improved effect Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 208000003643 Callosities Diseases 0.000 description 1
- 206010020649 Hyperkeratosis Diseases 0.000 description 1
- 241001124569 Lycaenidae Species 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F12/00—Parts or details of threshing apparatus
- A01F12/18—Threshing devices
- A01F12/28—Devices for adjusting the concaves
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F12/00—Parts or details of threshing apparatus
- A01F12/18—Threshing devices
- A01F12/26—Multi-part threshing concaves
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Threshing Machine Elements (AREA)
Abstract
The utility model provides a maize concave plate that threshing that can automatically regulated grid interval, includes upper connecting plate and lower connecting plate, upper connecting plate and lower connecting plate both ends fixedly connected with side connecting plate respectively, the side connecting plate is the arc, and the activity is provided with a plurality of grid round steel that is parallel to each other between two side connecting plates, and side connecting plate evenly has offered a plurality of first waist type groove with grid round steel one-to-one from last to down, and the extending direction in first waist type groove is the same with the normal direction of side connecting plate midpoint department, grid round steel both ends slip respectively set up in first waist type inslot, be connected through the spring between one of them one end in first waist type groove and the grid round steel. The grid round steel spacing of the corn threshing concave plate can be adjusted according to the compression degree of the spring controlled by the force applied when corn is crushed, and can also be adjusted according to the connecting force of corn kernels and ears detected by the pressure sensor, so that indirect flexible threshing is realized, and the breakage rate and impurity content of the corn kernels in direct use are reduced.
Description
Technical Field
The invention relates to the technical field of threshing and separating of corn kernel combine harvesters, in particular to a corn threshing concave plate capable of automatically adjusting grid spacing.
Background
Development of a corn kernel combine harvester is a hot tide of agricultural machinery industry in recent years in China, and development of a threshing concave plate occupies an important position for realizing a threshing effect with low loss. When corn is harvested, the corn has different water content, so that the connecting force between the kernels and the ears is different; the higher the water content, the greater the connection force between the kernel and the cluster. Therefore, the higher the moisture content of the corn during threshing, the greater the force required for threshing.
When corn threshing that the moisture content is high, if adopt traditional band steel grid structure concave plate of threshing, then cause corn kernel damage very easily, among the prior art, have to the concave plate edges and corners to the high grain breakage rate that the corn caused, the design is through changing band steel grid structure into the round steel to and with the partly embedding of grid round steel in the fixed plate, thereby reduce concave plate edges and corners, reach the purpose that reduces corn kernel breakage rate. However, the concave plate grid bar round steel and the connecting plate are welded together, the grid spacing cannot be adjusted, namely under the condition of a certain rotating speed, the force of corn subjected to threshing concave plates is always unchanged, and when the moisture content of the corn is different, the breakage rate of corn seeds is increased. In the prior art, the corn threshing concave plates are used for adjusting the grid spacing according to different corn sizes, so that the threshing effect of corn is improved. However, when the grid spacing is adjusted, the number of round steel is manually increased or reduced, so that the workload is increased, the operation is inconvenient, the damage of parts is accelerated due to repeated adjustment, the adjustment range is low in precision, the adaptability is not strong, and larger grain loss still can be caused.
Disclosure of Invention
In order to solve the problems of high corn kernel breakage rate and high impurity content caused by the fact that the grid spacing of a corn threshing concave plate is not adjustable or the adjusting range is not controllable in the prior art, the invention provides the corn threshing concave plate capable of automatically adjusting the grid spacing.
The invention adopts the technical proposal for solving the technical problems that: the utility model provides a maize concave plate that threshing that can automatically regulated grid interval, includes upper connecting plate and lower connecting plate, upper connecting plate and lower connecting plate both ends fixedly connected with side connecting plate respectively, the side connecting plate is the arc, and the activity is provided with a plurality of grid round steel that is parallel to each other between two side connecting plates, and side connecting plate evenly has offered a plurality of first waist type groove with grid round steel one-to-one from last to down, and the extending direction in first waist type groove is the same with the normal direction of side connecting plate midpoint department, grid round steel both ends slip respectively set up in first waist type inslot, be connected through the spring between one of them one end in first waist type groove and the grid round steel.
As a preferred scheme, evenly be provided with a plurality of backup pad that is on a parallel with the side connecting plate between two side connecting plates, the upper end of backup pad is higher than the upper junction plate, and the lower extreme of backup pad is less than the lower junction plate, and has seted up a plurality of second waist type groove with grid round steel one-to-one in the backup pad.
As a preferable scheme, hooks are fixedly arranged at two ends of the side connecting plates and the supporting plates.
As a preferred scheme, all be provided with the gusset plate between side connecting plate and the backup pad and between two adjacent backup pads, the upper end and the lower extreme fixed connection of upper connecting plate of gusset plate, the lower extreme and the upper end fixed connection of lower connecting plate of gusset plate, and offered a plurality of spout with grid round steel one-to-one on the gusset plate, the extending direction of spout is the same with first waist type groove and spout length is not less than first waist type groove.
As a preferred solution, a pressure sensor is also arranged between the spring and the grid round steel.
As a preferable scheme, grooves matched with the first waist-shaped grooves are formed in the two ends of the grid round steel, the middle of the grid round steel is arranged in the second waist-shaped grooves and the sliding grooves, and the grid round steel can slide in the first waist-shaped grooves, the second waist-shaped grooves and the sliding grooves.
As a preferable scheme, the diameter of the grid round steel is larger than or equal to the width of the first waist-shaped groove.
As a preferred aspect, the length of the second waist-shaped groove is greater than the length of the first waist-shaped groove, and the width of the second waist-shaped groove is greater than the width of the first waist-shaped groove.
Compared with the prior art, the invention has the following beneficial effects:
(1) The invention provides a corn threshing concave plate capable of automatically adjusting the grid spacing, the spacing between grid round steels of the corn threshing concave plate can be automatically adjusted according to the force born by corn threshing, the spacing between the grid round steels can be adjusted according to the compression degree of a spring controlled by the force born by the spring when the spring is smashed by corn, and the spacing between the grid round steels can be adjusted according to the size of the corn grain and cluster connecting force detected by a pressure sensor, so that indirect flexible threshing is realized, the corn threshing effect is improved, and the breakage rate and impurity content of corn grains when the corn grains are directly smashed are reduced; the operation is simple, the grid round steel gap adjustment range is large, and the precision is high;
(2) The invention provides a corn threshing concave plate capable of automatically adjusting the grid spacing, and flexible threshing is realized while the grid round steel gaps can be automatically adjusted. The spring below the grid round steel can be stressed and compressed, but due to the addition of the pressure sensor, the spring can be compressed by a certain amount when the impact force of the grid round steel from corn is larger than a certain value or range, and when the impact force of the corn is reduced, the grid round steel automatically recovers, so that the threshing effect is improved, the entrainment loss phenomenon is avoided, and the efficient and low-loss corn threshing is realized.
Drawings
FIG. 1 is a top view of the overall structure of the present invention;
FIG. 2 is a side view of the overall structure of the present invention;
FIG. 3 is a schematic view of the structure of the support plate of the present invention;
FIG. 4 is a schematic view of a reinforcement plate structure according to the present invention;
FIG. 5 is a partial view of the grid round steel and side connection plates of the present invention in a cooperative motion;
FIG. 6 is a schematic view of the grid round steel structure of the present invention;
FIG. 7 is a schematic diagram of an embodiment of example 2 of the present invention;
reference numerals: 1. the device comprises an upper connecting plate, a lower connecting plate, a side connecting plate, a grid round steel, 401, grooves, 5, reinforcing plates, 6, supporting plates, 7, a first waist-shaped groove, 8, a second waist-shaped groove, 9, hooks, 10, springs, 11, sliding grooves, 12, a pressure sensor, 13, a baffle, 14 and a micro cylinder.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the accompanying drawings, and the embodiments and specific operation procedures of the present invention are given by this embodiment on the premise of the technical solution of the present invention, but the protection scope of the present invention is not limited to the following embodiments.
As shown in the figure, the corn threshing concave plate capable of automatically adjusting grid spacing comprises an upper connecting plate 1 and a lower connecting plate 2, wherein two ends of the upper connecting plate 1 and the lower connecting plate 2 are respectively fixedly connected with a side connecting plate 3, the side connecting plate 3 is an arc plate, a plurality of grid round steels 4 which are parallel to each other are movably arranged between the two side connecting plates 3, a plurality of first waist-shaped grooves 7 which are in one-to-one correspondence with the grid round steels 4 are uniformly formed in the side connecting plates 3 from top to bottom, the extending direction of the first waist-shaped grooves 7 is the same as the normal direction of the midpoint of the side connecting plate 3, two ends of the grid round steels 4 are respectively arranged in the first waist-shaped grooves 7 in a sliding mode, and one end of each first waist-shaped groove 7 is connected with each grid round steel 4 through a spring 10.
Further, a plurality of support plates 6 parallel to the side connecting plates 3 are uniformly arranged between the two side connecting plates 3, the upper ends of the support plates 6 are higher than the upper connecting plates 1, the lower ends of the support plates 6 are lower than the lower connecting plates 2, and a plurality of second waist-shaped grooves 8 corresponding to the grid round steels 4 one by one are formed in the support plates 6. The setting of backup pad 6 plays fine supporting role on the one hand, and another convenient also can share the atress.
Both ends of the side connecting plate 3 and the supporting plate 6 are fixedly provided with hooks 9. The hook 9 comprises a semicircular notch, the semicircular notch is matched with a threshing system fixing device on the corn kernel combine harvester and used for hanging a corn threshing concave on the corn kernel combine harvester, the hook 9 is detachable, convenient to replace, convenient to take and place the corn threshing concave, simple in structure and convenient to use.
Further, reinforcing plates 5 are arranged between the side connecting plates 3 and the supporting plates 6 and between two adjacent supporting plates 6, the upper ends of the reinforcing plates 5 are fixedly connected with the lower ends of the upper connecting plates 1, the lower ends of the reinforcing plates 5 are fixedly connected with the upper ends of the lower connecting plates 2, a plurality of sliding grooves 11 which are in one-to-one correspondence with the grid round steels 4 are formed in the reinforcing plates 5, the extending directions of the sliding grooves 11 are the same as those of the first waist-shaped grooves 7, and the lengths of the sliding grooves 11 are not smaller than the first waist-shaped grooves 7. The provision of the reinforcing plate 5 serves to reinforce, prevent deformation, and play a role in further reinforcement.
Further, a pressure sensor 12 is also arranged between the spring 10 and the grid round steel 4, and preferably, the pressure sensor 12 is a PVDF pressure sensor. The pressure is detected by the pressure sensor 12, after which the degree of expansion of the spring is controlled.
Further, grooves 401 matched with the first waist-shaped grooves 7 are formed in two ends of the grid round steel 4, the middle of the grid round steel 4 is arranged in the second waist-shaped grooves 8 and the sliding grooves 11, the widths of the second waist-shaped grooves 8 and the sliding grooves 11 are larger than the diameters of the grid round steel 4, and the grid round steel 4 can slide in the first waist-shaped grooves 7, the second waist-shaped grooves 8 and the sliding grooves 11. Preventing the grid steel 4 from moving axially.
Further, the diameter of the grid round steel 4 is larger than the width of the first waist-shaped groove 7.
Further, the length of the second waist-shaped groove 8 is greater than the length of the first waist-shaped groove 7, and the width of the second waist-shaped groove 8 is greater than the width of the first waist-shaped groove 7. On the premise of preventing the round steel from moving along the axial direction, the grid round steel 4 is ensured to have sufficient movable space.
Example 1
The utility model provides a maize concave plate that threshing that can automatically regulated grid interval, includes upper junction plate 1 and lower junction plate 2, upper junction plate 1 and lower junction plate 2 both ends fixedly connected with side connection plate 3 respectively, side connection plate 3 is the arc, and the activity is provided with a plurality of grid round steel 4 that are parallel to each other between two side connection plates 3, and side connection plate 3 has evenly offered a plurality of from top to bottom with grid round steel 4 one-to-one's first waist type groove 7, and the extending direction of first waist type groove 7 is the same with the normal direction of side connection plate 3 midpoint department, grid round steel 4 both ends slip respectively set up in first waist type groove 7, are connected through spring 10 between one of them one end of first waist type groove 7 and the grid round steel 4. In the working process, the compression degree of the spring 10 is controlled according to the force applied when the spring 10 is smashed by corn, and then the distance between the grid round steels 4 is adjusted. The compression and recovery process of the spring 10 is the up-and-down sliding process of the grid round steel 4. The structure is simple, the grid round steel gap adjustment range is large, and the grid round steel gap adjustment device is suitable for the conditions that the moisture content of corn kernels is low and the receiving requirement is not high.
Example two
The utility model provides a maize concave plate that threshing that can automatically regulated grid interval, includes upper junction plate 1 and lower junction plate 2, upper junction plate 1 and lower junction plate 2 both ends fixedly connected with side connection plate 3 respectively, side connection plate 3 is the arc, and the activity is provided with a plurality of grid round steel 4 that are parallel to each other between two side connection plates 3, and side connection plate 3 has evenly offered a plurality of first waist type groove 7 with grid round steel 4 one-to-one from last to lower, and the extending direction of first waist type groove 7 is the same with the normal direction of side connection plate 3 midpoint department, grid round steel 4 both ends slide respectively and set up in first waist type groove 7, are connected through spring 10 between one of them end and the grid round steel 4 of first waist type groove 7, and spring 10 welds in first waist type groove 7, still is provided with pressure sensor 12 between spring 10 and the grid round steel 4 for detect the pressure of grid round steel 4 to spring 10.
When the original precompression force of the spring 10 is the corn impact force when the corn moisture content is 15-25% (the corn moisture content of the grain can be directly collected by national standard), and when the corn moisture content is higher than the range, the connecting force between the grain and the cluster becomes larger, the force of throwing the corn cluster from the threshing cylinder to impact the threshing concave plate becomes larger, the force detected by the pressure sensor below the grid round steel 4 is larger than a certain value (say 1.05F-1.1F) of the reserved spring compression force, and the pressure sensor transmits a signal to the sensing module above the spring 10 to compress the spring 10, the grid round steel 4 descends, and the grid spacing is increased; the spring is compressed again when the next inductive force is in the range (1.1F-1.15F), the spring automatically recovers when the force detected by the pressure sensor is smaller than the value, the grid round steel 4 rises, the grid interval is reduced, flexible threshing is realized when the interval between the grid round steels is regulated, so that the grain threshing effect is improved, the grain breakage rate and impurity content are reduced, the operation is simple, and the grid round steel gap regulating range is large and the precision is high. In the second embodiment, as shown in fig. 7, a baffle 13 is disposed between the first ring and the second ring at the movable end of the spring 10, the baffle 13 is connected with the output shaft of the micro cylinder 14, the output shaft of the micro cylinder 14 slides in the chute, so as to drive the expansion and contraction of the baffle 13, and control the compression of the spring 10, the micro cylinder 14 is disposed inside the side connecting plate 3, and the micro cylinder 14 is connected with a controller of the micro cylinder 14. Although the spring 10 is compressed under the grid steel 4, the spring 10 is not compressed at any time due to the pressure sensor 12, but the spring 10 is compressed by a certain amount when the impact force of the grid steel 4 from the corn is greater than a certain value or range, and the grid steel 4 automatically recovers when the impact force of the corn is reduced. The threshing effect is improved, the breakage rate and the impurity content of seeds are reduced, the entrainment loss phenomenon is avoided, the control is more accurate, the water content of the corns can be judged according to the collected information of the pressure sensor, and the corn with different water contents can be stored separately in the later period.
The present invention is not limited to the above-mentioned embodiments, but is not limited to the above-mentioned embodiments, and any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical matters of the present invention will fall within the scope of the present invention without departing from the technical scope of the present invention.
Claims (4)
1. The utility model provides a can automatically regulated grid interval's maize concave plate of threshing, includes upper junction plate (1) and lower connecting plate (2), upper junction plate (1) and lower connecting plate (2) both ends are fixedly connected with side connecting plate (3) respectively, side connecting plate (3) are the arc, and the activity is provided with grid round steel (4) that a plurality of is parallel to each other between two side connecting plates (3), its characterized in that: each side connecting plate (3) is uniformly provided with a plurality of first waist-shaped grooves (7) which are in one-to-one correspondence with the grid round steel (4) from top to bottom, the extending direction of the first waist-shaped grooves (7) is the same as the normal direction of the middle point of each side connecting plate (3), two ends of each grid round steel (4) are respectively arranged in the first waist-shaped grooves (7) of the two side connecting plates (3) in a sliding way, and one end of each first waist-shaped groove (7) is connected with each grid round steel (4) through a spring (10);
a plurality of support plates (6) parallel to the side connecting plates (3) are uniformly arranged between the two side connecting plates (3), the upper ends of the support plates (6) are higher than the upper connecting plates (1), the lower ends of the support plates (6) are lower than the lower connecting plates (2), and a plurality of second waist-shaped grooves (8) which are in one-to-one correspondence with the grid round steel (4) are formed in the support plates (6);
reinforcing plates (5) are arranged between the side connecting plates (3) and the supporting plates (6) and between two adjacent supporting plates (6), the upper ends of the reinforcing plates (5) are fixedly connected with the lower ends of the upper connecting plates (1), the lower ends of the reinforcing plates (5) are fixedly connected with the upper ends of the lower connecting plates (2), a plurality of sliding grooves (11) which are in one-to-one correspondence with the grid round steels (4) are formed in the reinforcing plates (5), the extending direction of the sliding grooves (11) is the same as that of the first waist-shaped grooves (7), and the lengths of the sliding grooves (11) are not smaller than that of the first waist-shaped grooves (7);
grooves (401) matched with the first waist-shaped grooves (7) are formed in the two ends of the grid round steel (4), the middle of the grid round steel (4) is arranged in the second waist-shaped grooves (8) and the sliding grooves (11), and the grid round steel (4) can slide in the first waist-shaped grooves (7), the second waist-shaped grooves (8) and the sliding grooves (11);
the diameter of the grid round steel (4) is larger than or equal to the width of the first waist-shaped groove (7).
2. A corn threshing concave capable of automatically adjusting the grid spacing as recited in claim 1, wherein: both ends of the side connecting plate (3) and the supporting plate (6) are fixedly provided with hooks (9).
3. A corn threshing concave capable of automatically adjusting the grid spacing as recited in claim 1, wherein: a pressure sensor (12) is also arranged between the spring (10) and the grid round steel (4).
4. A corn threshing concave capable of automatically adjusting the grid spacing as recited in claim 1, wherein: the length of the second waist-shaped groove (8) is larger than that of the first waist-shaped groove (7), and the width of the second waist-shaped groove (8) is larger than that of the first waist-shaped groove (7).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810608221.5A CN108651016B (en) | 2018-06-13 | 2018-06-13 | Corn threshing concave plate capable of automatically adjusting grid spacing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810608221.5A CN108651016B (en) | 2018-06-13 | 2018-06-13 | Corn threshing concave plate capable of automatically adjusting grid spacing |
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| CN108651016A CN108651016A (en) | 2018-10-16 |
| CN108651016B true CN108651016B (en) | 2024-01-30 |
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| US11877538B1 (en) * | 2022-08-30 | 2024-01-23 | Calmer Holding Company, Llc | Threshing grains and legumes utilizing concaves with adjustable openings |
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| CN108651016A (en) | 2018-10-16 |
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